________ I stayed in the AAA Company only a short time, but I learned a lot

By the time he arrives in Beijing, we ___________ here for two days.

A)will have stayed B)shall stay C)have been staying D)have stayed

A.little

B. minimal

C. a little

D. minimize

his sum because the accountant who was()charge of your sum had been seriously ill and stayed in hospital for one month.

下表所显示的是1980-2000年间黄油的平均零售价格和消费者价格指数，1980年CPI=100。（1)计算以198

下表所显示的是1980-2000年间黄油的平均零售价格和消费者价格指数，1980年CPI=100。

(1)计算以1980年美元衡量的黄油实际价格，从1980-2000年，实际价格是上升了，还是下降了，抑或没有变化？

(2)从1980-2000年间，黄油实际价格(1980年美元)的变化率是多少？

(3)把CPI指数转换成1990=100的指数，然后以1990年美元来确定黄油的实际价格。

(4)从1980- 2000年间，黄油实际价格(1990年美元)的变化率是多少？试和你在(2)所得出的答案进行比较，你注意到什么了吗？请给出解释。

The following table shows the average retail price of butter and the Consumer Price Index from 1980 to 2000, scaled so that the CPI=100 in 1980.

a. Calculate the real price of butter in 1980 dollars. Has the real price increased/ decreased/stayed the same since 1980？

b. What is the percentage change in the real price (1980 dollars) from 1980 to 2000？

c. Convert the CPI into 1990 = 100 and determine the real price of butter in 1990 dollars.

d. What is the percentage change in the real price (1990 dollars) from 1980 to 2000？ Compare this with your answer in (b). What do you notice？ Explain.

此题为判断题(对，错)。

I wish I ____ longer this morning, but I had to get up and come to class.

(A) could have slept (C) might have slept

(B) slept (D) have slept

I could not persuade him to accept it, _____ the important of it.

(A) if only I could not (B) no more than I could (C) or I could not (D) nor could I

A.Yes,I have

B.No,I haven’t

C.Yes,I do

D.No,I didn’t

A.is

B.were

C.was

D.am

A.I=R/V

B.I=V/R

C.I=RV

D.I=P/S

________________(谈到物理学), I know nothing.